Java数组第二小数

public class Tester {

   public static int getSecondSmallest(int[] a) {

      int temp;

      //sort the array

      for (int i = 0; i < a.length; i++) {

         for (int j = i + 1; j < a.length; j++) {

            if (a[i] > a[j]) {

               temp = a[i];

               a[i] = a[j];

               a[j] = temp;

            }

         }

      }

      //return second smallest element

      return a[1];

   }

   public static void main(String args[]) {

      int a[] = { 11,10,4, 15, 16, 13, 2 };

      System.out.println("Second Smallest: " +getSecondSmallest(a));

   }

}